coccyx
US /ˈkɑːk.sɪks/
UK /ˈkɑːk.sɪks/

1.
꼬리뼈
a small, triangular bone at the base of the spinal column in humans and some apes, formed of fused rudimentary vertebrae.
:
•
He fell and bruised his coccyx.
그는 넘어져서 꼬리뼈를 다쳤다.
•
The coccyx is the final segment of the vertebral column.
꼬리뼈는 척추의 마지막 부분이다.